Churn



Mel) B. H. OVERHISER.

GHURN.

Patented Apr. 25,1882- fjal N. PETERS. Phowumo m mr. \Vaihinglun. D. Cv

UNITED STATES PATENT OFFICE.

BENJAMIN H. OVERHISER, OF ORl/VELL, VERMONT.

CHURN.

SPECIFICATION forming part of Letters Patent No."256',851, dated April25, 1882.

Application filed November 19, 1880.

To all whom it may concern:

Be it known that I, BENJAMIN H. OVERHI- sER, a citizen of the UnitedStates,residin g in Orwell, Addison county, Vermont, have inventedcertain Improvements in Ohurns, of which the following is aspecification.

Myinvention consists of a churn constructed in thepeculiar manner fullydescribed hereinafter, with the view of causing such an agitation of thecream as to facilitate its conversion into better. I In the accompanyingdrawings, Figure 1 is a side view of the body and rocking frame of thechurn raised from the base, which is shown in section; Fig. 2, avertical section; Fig. 3, a transverse section on the line 1 2; andFigs. 4 and 5 diagrams drawn to a reduced scale and illustrating theaction of the churn.

The body or vessel A of the churn may be made of the shape shown inFigs. 2 and 3- that is to say, with a flat top, a, and rounded oppositeends, I) b, which merge into the bottom (1, the latter being made in thearc of a circle less abrupt than the ends, the sides of the vessel beingflat, as shown in Fig. 3.

Theroeking frame B consists of the opposite rockers, f f, the transversepieces e e, and the longitudinal strips h h, secured one to each rocker.The crosspieces 0 e of the rocking frame are so adapted to the base d ofthe body as to afford a proper support for the same, and the sidestrips, h it, serve to maintain the body in its proper lateral position.

The base D consists of the opposite side pieces, at m, and cross-piecesa a, connected to the said side pieces, on which are the ways or, madein the are of a circle, and which form the bearings for the rockers f,side strips, 19 12, secured to the base serving to maintain the rockingframe in its proper lateral position.

It is essential to my invention that the rockers should be made in theare of a circle of less diameter than that of the circle of which theways a; are the arcs-a feature the successful result of which may beexplained as follows:

On rocking the frame and churn-body to and fro it will be graduallyarrested at and near the termination of each movement, owing to (Nomodel.)

the fact that there is a slight elevation of the rocking frame B andvessel A at such times, owing to the concave form of the ways on whichsaid frame rocks. As the vibration of the vessel is arrested at each endof the move ment, the cream, owing to curved bottom at and .rounded endsI) of the vessehwill naturally take the course pointed out bythearrowsin Figs. 4 and 5; or, in other words, there will be a displacement ofthe cream at the end of each vibration, and such a general agitation ofthe cream as to facilitate its conversion into butter. Any tendency ofthe moving mass of cream to cause the tipping over of the vessel A as itis vibrated is counteracted by the gradual checking of the movement ofthe vessel near each limitof such movement.

In order to retain the rocking frame within proper limits, I sometimesattach to each side of the rocking frame a pointed projection, q, thelower end of which is contained in a recess or notch, 8, formed on theside of the base, the recesses being too large, compared with the sizeof the projections, to interfere with the proper operation of the frame.

An operating-handle, n, is secured to the side of the vessel,which hasat the top a suitable opening through which to pour the cream andwithdraw the butter, and a suitable outlet from which the buttermilkmaybe discharged on removing the plug.

The body A simply rests on the rocking frame, there being no fasteningsto interfere with its prompt removal from the said frame.

I claim as my invention- The combination of the vessel A, free frominternal agitating devices, and having arounded bottom and curved endsof less radius than the bottom, with rockers B, and a base having waysmade on a curve lessabrupt than the curve of the rockers, as set forth.

In testimony whereofI have signed my name to this specification in thepresence of two subscribing witnesses.

BENJAMIN H. OVERHISER.

Witnesses DAVIS S. WELLs, .T. S. WILooX.

